Is it okay to exercise while sick? When it's safe to exercise with a cold & when to avoid, according to docs

But it's a myth that exercising can help you "sweat it out." ...
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Is working out while sick safe? What you should know

You can usually safely work out with "above-the-neck" symptoms like a runny nose, but it's best to lower your intensity. "Below-the-neck" symptoms, such as nausea and vomiting, are signs to stop ...